Bug 27020 - Compiling class with "fixed" member against System.Runtime.dll contract fails with StructLayoutAttribute not accessible
Summary: Compiling class with "fixed" member against System.Runtime.dll contract fails...
Status: RESOLVED FIXED
Alias: None
Product: Compilers
Classification: Mono
Component: C# (show other bugs)
Version: unspecified
Hardware: All All
: --- normal
Target Milestone: ---
Assignee: Marek Safar
URL:
Depends on:
Blocks:
 
Reported: 2015-02-12 22:21 UTC by Alexander Köplinger
Modified: 2015-02-13 10:51 UTC (History)
1 user (show)

Tags:
Is this bug a regression?: ---
Last known good build:

Notice (2018-05-24): bugzilla.xamarin.com is now in read-only mode.

Please join us on Visual Studio Developer Community and in the Xamarin and Mono organizations on GitHub to continue tracking issues. Bugzilla will remain available for reference in read-only mode. We will continue to work on open Bugzilla bugs, copy them to the new locations as needed for follow-up, and add the new items under Related Links.

Our sincere thanks to everyone who has contributed on this bug tracker over the years. Thanks also for your understanding as we make these adjustments and improvements for the future.


Please create a new report on GitHub or Developer Community with your current version information, steps to reproduce, and relevant error messages or log files if you are hitting an issue that looks similar to this resolved bug and you do not yet see a matching new report.

Related Links:
Status:
RESOLVED FIXED

Description Alexander Köplinger 2015-02-12 22:21:51 UTC
Compiling the following class against MS System.Runtime.dll contract fails with mcs, but compiles fine with csc:

> class Interop
> {
>     unsafe struct dirent 
>     {
>         fixed byte d_name[256]; 
>     }
> }

Get the System.Runtime.dll contract from NuGet:

> curl -sSL https://www.nuget.org/api/v2/package/System.Runtime/4.0.20-beta-22416 > temp.zip && unzip -p temp.zip lib/portable-wpa80%2Bwin80%2Bnet45%2Baspnetcore50/System.Runtime.dll > System.Runtime.dll

Compile it:

> mcs /target:library /unsafe /nostdlib /reference:System.Runtime.dll test.cs

This results in the following error:

> test.cs(5,29): error CS0656: The compiler required member `System.Runtime.InteropServices.StructLayoutAttribute..ctor(short)' could not be found or is inaccessible

Note: this is part of my work getting dotnet/corefx compiling with Mono, let me know if this is doing something weird ;)
Comment 1 Marek Safar 2015-02-13 10:51:22 UTC
Fixed in master